Highlights Botanical Name Quercus macrocarpa Year 2024 Location Capitol Square, N.E. U.S. Capitol Grounds View on Map Text of PlaqueU.S. Capitol GroundsCommemorative TreeQuercus macrocarpa(Bur Oak)Sponsored by:Senator Joni K. ErnstTo Honor Senator Chuck GrassleyFor His Service to Iowans in the U.S. SenateDedicated on June 4, 2024